package com.example.androidlearning2422.ui.act

import android.os.Bundle
import androidx.activity.ComponentActivity
import androidx.activity.compose.setContent
import androidx.activity.enableEdgeToEdge
import androidx.compose.foundation.Image
import androidx.compose.foundation.layout.Arrangement
import androidx.compose.foundation.layout.Box
import androidx.compose.foundation.layout.Column
import androidx.compose.foundation.layout.fillMaxSize
import androidx.compose.foundation.layout.padding
import androidx.compose.material3.Surface
import androidx.compose.material3.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.layout.ContentScale
import androidx.compose.ui.res.painterResource
import androidx.compose.ui.res.stringResource
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp
import com.example.androidlearning2422.ui.theme.AndroidLearning2422Theme
import com.tailyou.androidlearning2400.R

class BirthdayCardActivity : ComponentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        enableEdgeToEdge()
        setContent {
            AndroidLearning2422Theme {
                Surface(
                    modifier = Modifier.fillMaxSize()
                ) {
                    GreetingImage(
                        message = stringResource(R.string.happy_birthday_tailyou),
                        from = stringResource(R.string.from_sam)
                    )
                }
            }
        }
    }
}

@Composable
fun GreetingText(message: String, from: String, modifier: Modifier = Modifier) {
    Column(
        verticalArrangement = Arrangement.Center,
        modifier = modifier.padding(all = 16.dp)
    ) {
        Text(
            text = message,
            fontSize = 100.sp,
            lineHeight = 116.sp,
            textAlign = TextAlign.Center
        )

            Text(
                text = from,
                fontSize = 24.sp,
                modifier = Modifier
                    .padding(all = 16.dp)
                    .align(alignment = Alignment.End)
            )
        }
    }

    @Composable
    fun GreetingImage(message: String, from: String, modifier: Modifier = Modifier) {
        val image = painterResource(R.drawable.party)
        Box(modifier) {
            Image(
                painter = image,
                contentDescription = null,
                contentScale = ContentScale.Crop,
                alpha = 0.5F
            )
            GreetingText(message, from)
        }
    }


    /**
     * 预览函数，仅用于预览，删除不影响程序运行
     */
    @Preview(showBackground = true)
    @Composable
    fun BirthdayCardPreview() {
        AndroidLearning2422Theme {
            GreetingImage("Happy Birthday Tailyou!", "From Sam")
        }
    }